According to [M Caldeira], the Blaupunkt Sultan 24300 was one of the last tube radios made in the 1960s. He’s got one but it needed some tender loving care, and you can see how he approaches … ...

Inserted between the human and the radio, a PIC 16F628A keeps watch in both directions. On one side, the radio’s tank circuit is monitored to see what frequency the radio is currently playing.

Japanese designer Yuri Suzuki has created a functioning radio using Harry Beck’s famous London Underground map as a circuit board. Japanese designer Yuri Suzuki has created a functioning radio ...

Well it'd look like this. The circuit-board radio project is a collaboration between Yuri Suzuki and Masahiko Shindo, and uses Harry Beck's iconic tube map design.

The signals tended to be weak and required the operator to wear headphones to hear the signal. Edwin H. Armstrong invented a circuit that allowed people to hear distant radio transmissions without ...

Object Details maker Emerson Radio Corporation Description (Brief) During the 1930s radio makers introduced many designs for both radio circuits and receiver styling. As engineers gained better ...